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Im trying to sort my ListView in alphabetic order. ListView has 3 fields: title, description, image. I must sort title in alphabetic order.

Gavin Miller
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Rostislav Prozorovsky
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  • Sort the contents of your data model. If you are using a `CursorAdapter`, add the appropriate sorting rule to your query (e.g., `ORDER BY` for SQLite). If you are using an `ArrayAdapter`, sort your `ArrayList` using `Collections.sort()`. And so on. – CommonsWare Sep 20 '15 at 13:36

1 Answers1

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sort your list (no the listView). try this:

Collections.sort(yourList, new Comparator<yourClass>() {
    @Override
    public int compare(yourClass left, yourClass right) {
        return left.getTitle().compareTo(right.getTitle());
    }
});
AsfK
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  • I have class Fish,for Example.I must put "Fish" instead "yourClass" or ArrayList> ? – Rostislav Prozorovsky Sep 20 '15 at 13:49
  • Yes. btw, FTI, if the returned list is immutable you should storage the result in new variable. see this link: http://stackoverflow.com/questions/32328630/unsupportedoperationexception-when-trying-sort-sensor-list – AsfK Sep 21 '15 at 08:16